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FINALLY the light at the end of the tunnel I think!

bobtile

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As you probably have seen, I've been trying to sort out this Gen 3 combo for 2 years now.
Sometimes searching for big issues you overlook the basics.
After finding a bunch of things wrong in the engine this spring I decided to build it myself. Until Saturday, my best e.t. after rebuild was 9.84@ 134.7. As it got warmer out, the car was running 10.0s. Something was still off.
Although my consistency was now there, it was slow.
I had a race Saturday with my NODRAMA club.
First pass was [email protected]
Sitting in the pits staring at the car during an extended oil down cleanup, I grabbed a buddy and had him push gas pedal to the floor.
Throttle blades were at about 3/4 open...
Past experience with my 440's had me believe there wasn't much gain by opening up fully for some reason.
But I spent time to get it as close as I could to fully open anyway. It's still not completely there but I'll work on that this week.
So I go up for my second timeshot and was i surprised...
9.59@138! I still only have 22° of timing and it should take 25.
1st round my opponent went red so I ran it out and went 9.58@ 138.23.
Best part is I made it to the finals but lost.
Car was very consistent. First 3 passes @ 1/8 mile were all 6.06@112 and last 3 (round Robin so it was hot) were 6.08's@112.
I think Im finally happy.
Ps D.A was 2700 most of the day.
Looking back in my log book from last year with DA @ 2700 I was running 9.90's.

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20250621_143938.jpg
 
As you probably have seen, I've been trying to sort out this Gen 3 combo for 2 years now.
Sometimes searching for big issues you overlook the basics.
After finding a bunch of things wrong in the engine this spring I decided to build it myself. Until Saturday, my best e.t. after rebuild was 9.84@ 134.7. As it got warmer out, the car was running 10.0s. Something was still off.
Although my consistency was now there, it was slow.
I had a race Saturday with my NODRAMA club.
First pass was [email protected]
Sitting in the pits staring at the car during an extended oil down cleanup, I grabbed a buddy and had him push gas pedal to the floor.
Throttle blades were at about 3/4 open...
Past experience with my 440's had me believe there wasn't much gain by opening up fully for some reason.
But I spent time to get it as close as I could to fully open anyway. It's still not completely there but I'll work on that this week.
So I go up for my second timeshot and was i surprised...
9.59@138! I still only have 22° of timing and it should take 25.
1st round my opponent went red so I ran it out and went 9.58@ 138.23.
Best part is I made it to the finals but lost.
Car was very consistent. First 3 passes @ 1/8 mile were all 6.06@112 and last 3 (round Robin so it was hot) were 6.08's@112.
I think Im finally happy.
Ps D.A was 2700 most of the day.
Looking back in my log book from last year with DA @ 2700 I was running 9.90's.

View attachment 1873826

View attachment 1873827

View attachment 1873828

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Very cool car... and throttle not being full is such a easy thing to assume is just there and overlook
 
Forgot to mention that starter switch or solenoid went out after pictures in winners circle.
Ha

Screenshot_20250623_103124_Facebook.jpg
 
Forgot to mention that starter switch or solenoid went out after pictures in winners circle.
Ha

View attachment 1873893

hahah ok.. that's the best winners circle pic :).. man that's a pretty car, was never into notches but lately i'm really liking them. When i got my car the other choice was a notch from cali with a locked 273.. i chose poorly.. Old b-bodies own me though
 
hahah ok.. that's the best winners circle pic :).. man that's a pretty car, was never into notches but lately i'm really liking them. When i got my car the other choice was a notch from cali with a locked 273.. i chose poorly.. Old b-bodies own me though
Thank you.
I was always a b-body guy. This came up for sale to race so I had to buy it...
 
9.57-.58 @ 138 passes not too shabby
congrats Bob

the 'throttle positioning sensor' (electronic crap, probably is the gain)
now it knows it's open all the way too or near all the way
 
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